Recalibrating SARS-CoV-2 Antigen Rapid Lateral Flow Test Relative Sensitivity from Validation Studies to Absolute Sensitivity for Indicating Individuals Shedding Transmissible Virus

Figures & data

Table 1 Calibrated Sensitivity (%) of LFT to detect SARS-CoV-2 antigen in nose/throat swab samples by different values of and Apparent Sensitivity Estimates. - Indicates that this apparent sensitivity value is not possible for the given value of π, under our assumptions

*	Apparent Relative Sensitivity
	30%	35%	40%	45%	50%	55%	60%	65%	70%	75%	80%
	Calibrated Absolute Sensitivity
0.300	100%	–	–	–	–	–	–	–	–	–	–
0.325	92%	–	–	–	–	–	–	–	–	–	–
0.350	86%	100%	–	–	–	–	–	–	–	–	–
0.375	80%	93%	–	–	–	–	–	–	–	–	–
0.400	75%	88%	100%	–	–	–	–	–	–	–	–
0.425	71%	82%	94%	–	–	–	–	–	–	–	–
0.450	67%	78%	89%	100%	–	–	–	–	–	–	–
0.475	63%	74%	84%	95%	–	–	–	–	–	–	-
0.500	60%	70%	80%	90%	100%	–	–	–	–	–	–
0.525	57%	67%	76%	86%	95%	–	–	–	–	–	–
0.550	55%	64%	73%	82%	91%	100%	–	–	–	–	–
0.575	52%	61%	70%	78%	87%	96%	–	–	–	–	–
0.600	50%	58%	67%	75%	83%	92%	100%	–	–	–	–
0.625	48%	56%	64%	72%	80%	88%	96%	–	–	–	–
0.650	46%	54%	62%	69%	77%	85%	92%	100%	–	–	–
0.675	44%	52%	59%	67%	74%	81%	89%	96%	–	–	–
0.700	43%	50%	57%	64%	71%	79%	86%	93%	100%	–	–
0.725	41%	48%	55%	62%	69%	76%	83%	90%	97%	–	–
0.750	40%	47%	53%	60%	67%	73%	80%	87%	93%	100%	–
0.775	39%	45%	52%	58%	65%	71%	77%	84%	90%	97%	–
0.800	38%	44%	50%	56%	63%	69%	75%	81%	88%	94%	100%

* Note: * is the proportion of individuals who are shedding antigens among those who harbour viral RNA (detectable by PCR).